chore(deps): bump urllib3 in /unique_sdk/examples/custom-assistant

Bumps [urllib3](https://github.com/urllib3/urllib3) from 2.1.0 to 2.2.2.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)
- [Commits](urllib3/urllib3@2.1.0...2.2.2)

---
updated-dependencies:
- dependency-name: urllib3
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>